2557136161 has 8 divisors (see below), whose sum is σ = 2646201600. Its totient is φ = 2468130000.

The previous prime is 2557136143. The next prime is 2557136167. The reversal of 2557136161 is 1616317552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2557136161 - 2⁵ = 2557136129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2557136161.

It is not an unprimeable number, because it can be changed into a prime (2557136167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84286 + ... + 110536.

It is an arithmetic number, because the mean of its divisors is an integer number (330775200).

Almost surely, 2^2557136161 is an apocalyptic number.

It is an amenable number.

2557136161 is a deficient number, since it is larger than the sum of its proper divisors (89065439).

2557136161 is a wasteful number, since it uses less digits than its factorization.

2557136161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29639.

The product of its digits is 37800, while the sum is 37.

The square root of 2557136161 is about 50568.1338492929. The cubic root of 2557136161 is about 1367.4704528573.

The spelling of 2557136161 in words is "two billion, five hundred fifty-seven million, one hundred thirty-six thousand, one hundred sixty-one".